Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Use same example code for async effect warning #15118

Merged
merged 1 commit into from
Mar 15, 2019
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Original file line number Diff line number Diff line change
Expand Up @@ -4446,19 +4446,15 @@ const tests = {
errors: [
`Effect callbacks are synchronous to prevent race conditions. ` +
`Put the async function inside:\n\n` +
`useEffect(() => {\n` +
` let ignore = false;\n` +
` fetchSomething();\n` +
`\n` +
` async function fetchSomething() {\n` +
` const result = await ...\n` +
` if (!ignore) setState(result);\n` +
` }\n` +
`\n` +
` return () => { ignore = true; };\n` +
`}, ...);\n` +
`\n` +
`This lets you handle multiple requests without bugs.`,
'useEffect(() => {\n' +
' async function fetchData() {\n' +
' // You can await here\n' +
' const response = await MyAPI.getData(someId);\n' +
' // ...\n' +
' }\n' +
' fetchData();\n' +
`}, [someId]); // Or [] if effect doesn't need props or state\n\n` +
'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching',
],
},
{
Expand Down
22 changes: 9 additions & 13 deletions packages/eslint-plugin-react-hooks/src/ExhaustiveDeps.js
Original file line number Diff line number Diff line change
Expand Up @@ -112,19 +112,15 @@ export default {
message:
`Effect callbacks are synchronous to prevent race conditions. ` +
`Put the async function inside:\n\n` +
`useEffect(() => {\n` +
` let ignore = false;\n` +
` fetchSomething();\n` +
`\n` +
` async function fetchSomething() {\n` +
` const result = await ...\n` +
` if (!ignore) setState(result);\n` +
` }\n` +
`\n` +
` return () => { ignore = true; };\n` +
`}, ...);\n` +
`\n` +
`This lets you handle multiple requests without bugs.`,
'useEffect(() => {\n' +
' async function fetchData() {\n' +
' // You can await here\n' +
' const response = await MyAPI.getData(someId);\n' +
' // ...\n' +
' }\n' +
' fetchData();\n' +
`}, [someId]); // Or [] if effect doesn't need props or state\n\n` +
'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching',
});
}

Expand Down
2 changes: 1 addition & 1 deletion packages/react-reconciler/src/ReactFiberCommitWork.js
Original file line number Diff line number Diff line change
Expand Up @@ -358,7 +358,7 @@ function commitHookEffectList(
' // ...\n' +
' }\n' +
' fetchData();\n' +
'}, [someId]);\n\n' +
`}, [someId]); // Or [] if effect doesn't need props or state\n\n` +
'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching';
} else {
addendum = ' You returned: ' + destroy;
Expand Down